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Chemistry, 10.05.2021 17:20 vdkgknsdg4817

A post 1982 penny has mass a mass of 2.500 grams. The penny composed of 2.4375 g zinc and copper 0.0625

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A post 1982 penny has mass a mass of 2.500 grams. The penny composed of 2.4375 g zinc and copper 0.0...
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